Banner, Wyoming
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 33° -35° (1997) 70° (1974) 0.77" 12.6"
February 15° 39° -32° (1989) 76° (1982) 0.57" 9.4"
March 23° 48° -23° (1965) 80° (2004) 1" 11.7"
April 30° 58° -2° (1975) 86° (1992) 1.77" 9.5"
May 39° 66° 13° (1954) 95° (1960) 2.41" 1.9"
June 47° 76° 27° (1951) 105° (1988) 2.02" 0"
July 52° 85° 35° (1971) 107° (2005) 1.11" 0"
August 52° 85° 32° (2002) 106° (1983) 0.8" 0"
September 41° 73° 6° (1984) 103° (1983) 1.38" 2"
October 30° 60° -9° (1991) 92° (1992) 1.41" 5.8"
November 19° 43° -25° (1959) 81° (1999) 0.8" 9.1"
December 10° 34° -37° (1983) 72° (1981) 0.68" 12.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 47° 80° 36° (1965) 103° (1983) 0.04" NA
Sep 2 46° 79° 34° (2006) 97° (1989) 0.04" NA
Sep 3 46° 79° 33° (1974) 99° (1950) 0.04" NA
Sep 4 45° 78° 31° (1962) 101° (1998) 0.04" NA
Sep 5 45° 78° 35° (1968) 99° (1978) 0.04" NA
Sep 6 45° 77° 34° (1956) 95° (1980) 0.04" NA
Sep 7 44° 77° 34° (1984) 97° (1983) 0.04" NA
Sep 8 44° 76° 29° (1962) 99° (1979) 0.04" NA
Sep 9 43° 76° 30° (1962) 97° (1998) 0.04" NA
Sep 10 43° 75° 28° (1989) 90° (1998) 0.04" NA
Sep 11 43° 75° 24° (1989) 96° (1971) 0.04" NA
Sep 12 42° 74° 30° (1975) 98° (1990) 0.04" NA
Sep 13 42° 74° 27° (1974) 95° (1959) 0.05" NA
Sep 14 41° 74° 24° (1993) 99° (1948) 0.05" NA
Sep 15 41° 73° 26° (1970) 97° (1948) 0.05" NA
Sep 16 41° 73° 23° (1965) 94° (2000) 0.05" NA
Sep 17 40° 72° 24° (1965) 91° (1989) 0.05" NA
Sep 18 40° 72° 15° (1965) 94° (1984) 0.05" NA
Sep 19 40° 71° 24° (1965) 95° (1981) 0.05" NA
Sep 20 39° 71° 25° (1983) 90° (1984) 0.05" NA
Sep 21 39° 71° 23° (1983) 86° (1982) 0.05" NA
Sep 22 38° 70° 24° (1995) 91° (2007) 0.05" NA
Sep 23 38° 70° 26° (1955) 94° (1992) 0.05" NA
Sep 24 38° 69° 13° (1984) 89° (1949) 0.05" NA
Sep 25 37° 69° 6° (1984) 89° (2001) 0.05" NA
Sep 26 37° 69° 21° (1972) 91° (2001) 0.05" NA
Sep 27 37° 68° 22° (1964) 90° (1963) 0.05" NA
Sep 28 37° 68° 19° (1984) 92° (2001) 0.05" NA
Sep 29 36° 68° 20° (1985) 91° (1989) 0.05" NA
Sep 30 36° 67° 18° (1985) 91° (1989) 0.05" NA
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